Pressure flush-valve.



J. F. DIAZ.

PRESSURE FLUSH VALVE.

APPLIOATION FILED APR. 11, 1910.

'Patfi tfid Aug. 22, 1911.

UNTTE JOSEPH F. DIAZ, OF SAN FRANCISCO, CALIFORNIA, ASSIGNOR OF ONE-HALFTO PAUL SALINA, OF SAN FRANCISCO, CALIFORNIA.

PRESSURE FLUSH-VALVE.

Specification of Letters Patent.

Application filed April 11, 1910.

To all whom it may concern:

Be it known that I, Josnrrr F. DIAZ, a citizen of the United States,residing in the city and county of San Francisco and State ofCalifornia, have invented new and useful Improvements in PressureFlush-Valves, of which the following is a specification.

My invention relates to an improvement in toilet-flush valve andattachments.

It consists in the novel combination of parts, and details ofconstruction which will be more fully explained by reference to theaccompanying drawings, in which Figure 1 is a vertical section of thevalve and connections. Fig. 2 is a side view of the same, showing theapplication. Fig. 3 is a detail view of the operating lever. Fig. L is aplan view of the rack guide.

This invention relates to improvements in flushing valves and theirconnections such as are employed for toilets and the like, and for otherpurposes where a considerable body of water is to be discharged for alimited space of time.

A is the tank which is of sufficient dimensions to contain the necessaryquantity of water, and this tank is of such shape that it may beconveniently located in the wall, between the studding thereof, ifdesired. The tank is supplied with water from any suitable source,through a pipe 2,

3 is a discharge pipe from the tank. This connects directly with thevalve chamber 4, and thence when the valve 5 is opened, through thepassage 6, to the point where the water is to be used.

The valve may be of rubber or any other suitable material, and seats, ashere shown, upon a raised ledge 5 formed in the casting or constructionof the valve chamber.

The valve has a stem 7 which extends centrally upward through thehousing or chamber 8, and this stem is slidable in the tubular guide 9which is secured to the closed top of the said chamber, and the valvemay be lifted by any suitable or desired connection, a form of whichwill be hereafter described.

Within the housing or cylinder 8 is a plunger 12 having a peripheral cupleather which forms a tight joint with the inside of the cylinder, butwhich will yield when the plunger is forced upwardly to allow a portionof the water above the plunger to pass into the space between theplunger and the bottom of its cylinder. This plunger is secured to thevalve stem 7 and is movable with it. The valve stem 7 passes through astuffing-box 13 in the bottom of the plunger chamber, and said bottomhas a small opening 16 through which water may slowly escape when theplunger is forced down by its spring. l

lt is a pipe or passage connecting the supply passage 3 with the chamber8 above the plunger 12, so that when the valve 5 is seated, the chamber4. will be filled with water above the valve, and through the passage14, the chamber 8 will also be filled above the plunger 12.

15 is a spring of suitable tension which presses upon the top of theplunger 12 so that after the valve 5 has been opened, the spring 15 willact to gradually force the plunger 12 down, and with it the valve 5which will thus be eventually seated. The water which has passed belowthe plunger is allowed to escape through the small opening 16 in thebottom of the plunger chamber, and its rate of escape retards the.movement of the plunger and the closing of the valve so that eflicientflushing is insured.

The operation of the valve will be as follows: When flushing, ordischarge of water is desired, the valve 5 is lifted by a suitablemechanism, thus allowing water to pass out through the dischargepassage. The plunger 12 is also raised at the same time, and the waterabove the plunger passes around the sides thereof and into the chamberbelow, the spring 15 being also compressed and the valve 5 being thusopened, the flushing water rushes through the pipe 3,through the valveopening, and down through the discharge 6. The mechanism by which thevalve is opened being released, the spring acts upon the plunger 12,forcing it down slowly and the water between the plunger and the bottomof the plunger chamber will slowly escape through the small passage 16,thus allowing the spring to gradually close the valve upon its seat whenthe flushing operation is ended.

In order to open the valve I have shown a rack extension 17 'below thevalve, this rack being suitably guided at 17 and its teeth engaging withthe teeth of a circular segment 18 which is fixed to a shaft 19, and isturnable within a suitable segmental chamber 20 which is open upon theside contiguous to the rack.

Upon the end. of the shaft 19 is formed or fixed a handle 21. Thisportion of the device may be conveniently formed by bending the shaft 19to an angle with its journaled portion, which portion passes through astutling-box as at 22, and the handle 21 is within easy reach of theperson by whom it is to be operated. A pull upon this handle willrevolve the segment gear 18, and through. the rack 17 will open thevalve 5. The closure and return of the handle to its normal position iseffected by the action of the spring 15 as previously described.

Having thus described my invention, what I claim and desire to secure byLetters Patent is 1. The combination, of a cylinder having a transversepartition dividing it into a plurality of chambers, one of said chambershaving an inlet, a valve seat in said last named chamber having anopening through which water is discharged from the cylinder, a valveadapted to close against said seat, a plunger operable in the chamber ofthe cylinder above the partition, a stem connecting the valve andplunger so that they operate together in the same direction, a spring inthe chamber above the partition and bearing against the plunger, saidpartition having a restricted opening through which water is allowed toslowly escape during the descent of the plunger and valve, whereby thevalve seats slowly, and a bypass having one portion connecting with thechamber in the cylinderabove the plunger and having another portionconnecting through said inlet with the chamber in the cylinder belowsaid partition.

2. The combination, of a cylinder having a transverse partition dividingit into a plurality of chambers, one of said chambers having an inlet, avalve seat in said last named chamber having an opening through whichwater is discharged from the cylinder, a valve adapted to close againstsaid seat, a plunger operable in the chamber of the cylinder above thepartition; a stem connecting the valve and plunger so that they operatetogether in the same direct-ion, a spring in the chamber above thepartition and bearing against the plunger, said parti tion having arestricted opening through which water is allowed to slowly escapeduring the descent of the plunger and valve, whereby the valveseatsslowly, and a bypass having one portion connecting with the chamberin the cylinder above the plunger and having another portion connectingthrough said inlet with the chamber in the cylinder below saidpartition, said partition having a stuffing box through which said stempasses, and a rack and pinion connection with the stem for positivelylifting the valve from its seat and coordinately raising the plunger andcompressing the spring.

In testimony whereof I have hereunto set my hand in the presence of twosubscribing witnesses.

JOSEPH F. DIAZ;

WVitnesses:

G. H. STRONG, CHARLES A. PENFIELD.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner oflatents, Washington, D. G.

